Key blank



FIG. 1 is a front view of the key blank of my design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a plan view thereof;

FIG. 6 is an underside plan view thereof; and,

FIG. 7 is a transverse cross-section thereof taken on the line VII--VII in FIG. 1. 

The ornamental design for a key blank, as shown and described. 